76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <folly/logging/LogConfig.h>
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#include <folly/Conv.h>
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namespace folly {
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bool LogConfig::operator==(const LogConfig& other) const {
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return handlerConfigs_ == other.handlerConfigs_ &&
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categoryConfigs_ == other.categoryConfigs_;
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}
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bool LogConfig::operator!=(const LogConfig& other) const {
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return !(*this == other);
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}
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void LogConfig::update(const LogConfig& other) {
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// Update handlerConfigs_ with all of the entries from the other LogConfig.
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// Any entries already present in our handlerConfigs_ are replaced wholesale.
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for (const auto& entry : other.handlerConfigs_) {
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if (entry.second.type.has_value()) {
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// This is a complete LogHandlerConfig that should be inserted
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// or completely replace an existing handler config with this name.
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auto result = handlerConfigs_.insert(entry);
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if (!result.second) {
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result.first->second = entry.second;
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}
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} else {
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// This config is updating an existing LogHandlerConfig rather than
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// completely replacing it.
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auto iter = handlerConfigs_.find(entry.first);
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if (iter == handlerConfigs_.end()) {
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throw std::invalid_argument(to<std::string>(
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"cannot update configuration for unknown log handler \"",
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entry.first,
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"\""));
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}
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iter->second.update(entry.second);
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}
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}
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// Update categoryConfigs_ with all of the entries from the other LogConfig.
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//
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// Any entries already present in our categoryConfigs_ are merged: if the new
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// configuration does not include handler settings our entry's settings are
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// maintained.
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for (const auto& entry : other.categoryConfigs_) {
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auto result = categoryConfigs_.insert(entry);
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if (!result.second) {
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auto* existingEntry = &result.first->second;
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auto oldHandlers = std::move(existingEntry->handlers);
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*existingEntry = entry.second;
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if (!existingEntry->handlers.has_value()) {
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existingEntry->handlers = std::move(oldHandlers);
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}
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}
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}
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}
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} // namespace folly
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